Woodchipping is the act and industry of chipping wood for pulp. Timber is converted to
woodchips
Woodchips are small- to medium-sized pieces of wood formed by cutting or chipping larger pieces of wood such as trees, branches, logging residues, stumps, roots, and wood waste.
Woodchips may be used as a biomass solid fuel and are raw material ...
and sold, primarily, for
paper manufacture. In
Australia
Australia, officially the Commonwealth of Australia, is a Sovereign state, sovereign country comprising the mainland of the Australia (continent), Australian continent, the island of Tasmania, and numerous List of islands of Australia, sma ...
, woodchips are produced by
clearcutting
Clearcutting, clearfelling or clearcut logging is a forestry/ logging practice in which most or all trees in an area are uniformly cut down. Along with shelterwood and seed tree harvests, it is used by foresters to create certain types of fore ...
or
thinning
Thinning is a term used in agricultural sciences to mean the removal of some plants, or parts of plants, to make room for the growth of others. Selective removal of parts of a plant such as branches, buds, or roots is typically known as pruning.
...
of native forests or plantations. In other parts of the world, forestry practices such as
short rotation coppice
Short rotation coppice (SRC) is coppice grown as an energy crop. This woody solid biomass can be used in applications such as district heating, electric power generating stations, alone or in combination with other fuels. Currently, the leading ...
are the usual methods adopted.
Uses of wood chips includes the manufacture of
particle board
Particle board, also known as chipboard or low-density fiberboard, is an engineered wood product manufactured from wood chips and a synthetic resin or other suitable binder, which is pressed and extruded. Particle board is often confused with ori ...
(or "chip board") and other
engineered wood
Engineered wood, also called mass timber, composite wood, man-made wood, or manufactured board, includes a range of derivative wood products which are manufactured by binding or fixing the strands, particles, fibres, or veneers or boards of woo ...
s,
mulch
A mulch is a layer of material applied to the surface of soil. Reasons for applying mulch include conservation of soil moisture, improving fertility and health of the soil, reducing weed growth and enhancing the visual appeal of the area.
A m ...
and
fuel
A fuel is any material that can be made to react with other substances so that it releases energy as thermal energy or to be used for work. The concept was originally applied solely to those materials capable of releasing chemical energy but ...
.
Sources and process
Historically, the primary sources of wood chips in Australia have been the extensive ''
Eucalyptus
''Eucalyptus'' () is a genus of over seven hundred species of flowering trees, shrubs or mallees in the myrtle family, Myrtaceae. Along with several other genera in the tribe Eucalypteae, including '' Corymbia'', they are commonly known as euca ...
'' hardwood forests found throughout temperate areas of the country. In more recent times, a significant proportion comes from managed hardwood and softwood plantations.
During the late 1960s and 1970s, the high demand for paper and the relatively low cost and availability of the native forests made the establishment of a woodchipping industry a viable proposition. Conversely, the establishment of a woodchipping industry made it economically feasible to clearfell areas of mixed or substandard forest that could not otherwise have been felled.
Clearfelling
Clearcutting, clearfelling or clearcut logging is a forestry/logging practice in which most or all trees in an area are uniformly cut down. Along with shelterwood and seed tree harvests, it is used by foresters to create certain types of forest ...
is a controversial forest practice in Australia, and opponents argue that the woodchipping industry is culpable for its continuation.
Woodchips are converted into a fibre that can be made into various grades of paper or
rayon
Rayon is a semi-synthetic fiber, made from natural sources of regenerated cellulose, such as wood and related agricultural products. It has the same molecular structure as cellulose. It is also called viscose. Many types and grades of viscose f ...
for the textile industry. Most processing and value adding takes place outside of Australia.
The Australian economy benefits directly from a low-cost and high-volume export commodity.
Usage
Wood chips, as a byproduct of the
timber industry
Lumber is wood that has been processed into dimensional lumber, including beams and planks or boards, a stage in the process of wood production
Lumber and wood products, including timber for framing, plywood, and woodworking, are create ...
, have been used in many ways for centuries, for example as a material for the production of
wallpaper
Wallpaper is a material used in interior decoration to decorate the interior walls of domestic and public buildings. It is usually sold in rolls and is applied onto a wall using wallpaper paste. Wallpapers can come plain as "lining paper" (so t ...
or as a disposable floor covering in butchers shop or drinking houses.
Wood pulp
Pulp is a lignocellulosic fibrous material prepared by chemically or mechanically separating cellulose fibers from wood, fiber crops, waste paper, or rags. Mixed with water and other chemical or plant-based additives, pulp is the major raw mate ...
is the primary market for the woodchipping industry in Australia.
The practice, known as woodchipping, was to make use of most of the woody material in a tree to produce wood chips. This was then converted into paper, hardwood pulp is mainly used for printing paper and softwood pulp is added for good quality. An energy-intensive process, it also involved the use of
bleach
Bleach is the generic name for any chemical product that is used industrially or domestically to remove color (whitening) from a fabric or fiber or to clean or to remove stains in a process called bleaching. It often refers specifically, to ...
es and other toxic chemicals. This stage of the process, known as
Kraft pulping
The kraft process (also known as kraft pulping or sulfate process) is a process for conversion of wood into wood pulp, which consists of almost pure cellulose fibres, the main component of paper. The kraft process involves treatment of wood chip ...
, was primarily performed in
Japan
Japan ( ja, 日本, or , and formally , ''Nihonkoku'') is an island country in East Asia. It is situated in the northwest Pacific Ocean, and is bordered on the west by the Sea of Japan, while extending from the Sea of Okhotsk in the north ...
and elsewhere. High demand for paper products had purpose-built
bulk carrier
A bulk carrier or bulker is a merchant ship specially designed to transport unpackaged bulk cargo — such as grains, coal, ore, steel coils, and cement — in its cargo holds. Since the first specialized bulk carrier was built in 1852, econom ...
s increase the export of woodchips from Australia to Japan.
The separation of the chipping stage and the pulping and paper mills required the supply of energy usually sourced from byproducts of the process. Additional energy expenditure is found in the
shipping
Freight transport, also referred as ''Freight Forwarding'', is the physical process of transporting Commodity, commodities and merchandise goods and cargo. The term shipping originally referred to transport by sea but in American English, it h ...
of raw materials and export of the finished product.
Criticism and environmental opposition
The introduction of the wood chip industry to
Western Australia
Western Australia (commonly abbreviated as WA) is a state of Australia occupying the western percent of the land area of Australia excluding external territories. It is bounded by the Indian Ocean to the north and west, the Southern Ocean to th ...
in the 1960s initially attracted less opposition than it did in the
eastern states
The eastern states of Australia are the states and territories of Australia, states adjoining the east continental coastline of Australia. These are the mainland Australia, mainland states of Victoria (Australia), Victoria, New South Wales and Q ...
. At first it was seen as an opportunity for the economic development of the south west; it was not until the 1970s that an environmental movement against it began to emerge. The volatility of the issue became apparent in 1976 when two activists carried out the
Bunbury woodchip bombing
The 1976 Bunbury woodchip bombing was an unprecedented and politically motivated act of property destruction that took place at a woodchip export terminal in Bunbury, Western Australia. More than 1000 sticks of gelignite were planted by two envi ...
, a failed attempt to disable woodchip exporting facilities for 18 months.
See also
*
Land clearing in Australia
Land clearing in Australia describes the removal of native vegetation and deforestation in Australia. Land clearing involves the removal of native vegetation and habitats, including the bulldozing of native bushlands, forests, savannah, woodlands ...
*
Logging
Logging is the process of cutting, processing, and moving trees to a location for transport. It may include skidding, on-site processing, and loading of trees or logs onto trucks or skeleton cars.
Logging is the beginning of a supply chain ...
*
Woodchipper
A tree chipper or woodchipper is a machine used for reducing wood (generally tree limbs or trunks) into smaller woodchips. They are often portable, being mounted on wheels on frames suitable for towing behind a truck or van. Power is general ...
Woodchip mill companies and locations
*
Eden, New South Wales
Eden is a coastal town in the South Coast (New South Wales), South Coast region of New South Wales, Australia. The town is south of the States and territories of Australia, state capital Sydney and is the most southerly town in New South Wales ...
*
North Shore, Victoria
North Shore is an industrial and residential suburb of Geelong, Victoria, Australia. The suburb overlooks Corio Bay. A small residential area is east of the North Shore railway station with a few neighbourhood shops.
The suburb is bounded by ...
*
Longreach, Tasmania
*
Bell Bay, Tasmania
Bell Bay is an industrial centre and port located on the eastern shore of the Tamar River (Tasmania), Tamar River, in northern Tasmania, Australia. It lies just south of George Town, Tasmania, George Town. In the year ended June 2021, 3.6 million ...
*
Hampshire, Tasmania
Hampshire is a semi-rural locality in the local government areas (LGA) of Waratah Wynyard and Burnie in the North-west and west LGA region of Tasmania. The locality is about south-west of the town of Burnie. The 2016 census has a population o ...
*
Gunns
Gunns Limited was a major forestry enterprise located in Tasmania, Australia. It had operations in forest management, woodchipping, sawmilling and veneer production. The company was placed into liquidation in March 2013.
History
Founded in 187 ...
*
W.A. Chip & Pulp Co
*
Wesley Vale pulp mill The Wesley Vale pulp mill was a planned kraft process pulp mill, to be built near Wesley Vale and Devonport Airport in northern Tasmania in the late 1980s. The claim that waste would have been generated by the mill and present a threat to Tasmania ...
Woodchip critics and opponents
*
Australian Greens
The Australian Greens, commonly known as The Greens, are a confederation of Green state and territory political parties in Australia. As of the 2022 federal election, the Greens are the third largest political party in Australia by vote and th ...
*
Australian Conservation Foundation
The Australian Conservation Foundation (ACF) is Australia's national environmental organisation, launched in 1965 in response to a proposal by the World Wide Fund for Nature for a more co-ordinated approach to sustainability.
One high-profil ...
*
Campaign to Save Native Forests
The Campaign to Save Native Forests (W.A.) (CSNF) was the name of a grassroots organisation which grew from a campaign started in Perth, Western Australia, in 1975, as a response to the development of a woodchipping industry in the south-west jar ...
*
Conservation Council of Western Australia
The Conservation Council of Western Australia is the umbrella body for conservation groups and organisations in Western Australia. It has been the co-ordinator, publisher and guiding body for issues of woodchipping in the South West of Western Aus ...
*
Great Walk Networking
Great Walk Networking, also known as Great Walk Network, is a bushwalking community in Western Australia. The Great Walk started in 1988 as a protest walk from Denmark to Parliament House in Perth, to raise awareness of logging in Western Aust ...
*
Liberals for Forests
Liberals for Forests was an Australian political minor party. It contested both state and federal elections between 2002 and 2008, but only ever achieved one elected representative – Janet Woollard (elected as an Independent) in Western Aust ...
*
South West Forests Defence Foundation
South West Forests Defence Foundation (SFDF) is a group that has been involved in the conservation of the jarrah and karri forests of the South West region of Western Australia for more than four decades.
It was formed at approximately the same ti ...
*
Western Australian Forests Alliance
The West Australian Forest Alliance is an organization made up of a number of Western Australian environmental activist groups—concerned with the destruction of old-growth forests in the South West region.
It is a successor to and includes memb ...
Notes
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References
Further reading
* Dargavel, John (1995) ''Fashioning Australia's forests'', Oxford. Oxford University Press.
* Lines, William J. (1998) ''A long walk in the Australian bush'', Sydney, University of New South Wales Press.
* Mcdonald, Jan (1975) ''The Australian woodchip industry : a bibliography'' Canberra : Subject Reference Section, Parliamentary Library Legislative Service, 1975 "This bibliography has been compiled in connection with the inquiry into the Australian woodchip industry by the Senate Select Committee on Social Environment"
* Routley, R. and V. (1973) ''The Fight for the Forests: The Takeover of Australian Forests for Pines, Wood Chips and Intensive Forestry'', Research School of Social Sciences, ANU, Canberra.
* Tamaki, Mitsuzo. (1999) ''Green business alliance : The case of a Japanese/Australian joint
forest plantation
A tree plantation, forest plantation, plantation forest, timber plantation or tree farm is a forest planted for high volume production of wood, usually by planting one type of tree as a monoculture forest. The term ''tree farm'' also is used to ...
project''. Asia Pacific journal of economics & business, Dec. 1999, p. 76-96
* Thompson, Herb and Tracy, Julie.(1995) ''Woodchipping in Western Australia : timber workers vs. conservationists''. Perth, W.A. : Murdoch University. {{ISBN, 0-86905-453-8. Working paper (Murdoch University. Dept. of Economics); no. 135..
* Walter, Terry (1976) “Some Cost-benefit Aspects of Wood-Chipping in Western Australia”, Economic Activity, 56- 65.
External links
History of woodchippingGunns Mill pro- argument from NAFIChipstop- lobby group
Environmental issues with forests
History of Western Australia
Environmental issues in Australia
Forestry in Australia
Timber industry in Western Australia